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Madore, Barry F.; Freedman, Wendy L.; Silbermann, N.; Harding, Paul; Huchra, John; Mould, Jeremy R.; Graham, John A.; Ferrarese, Laura; Gibson, Brad K.; Han, Mingsheng; Hoessel, John G.; Hughes, Shaun M.; Illingworth, Garth D.; Phelps, Randy; Sakai, Shoko; Stetson, Peter (10 April 1999). "The Key Project on the Extragalactic Distance Scale. XV. A Cepheid Distance to the Fornax Cluster and Its Implications". The Astrophysical Journal. 515 (1): 29–41. arXiv:astro-ph/9812157. Bibcode:1999ApJ...515...29M. doi:10.1086/307004. S2CID119389510.
Planck Collaboration, Planck; Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Bartlett, J. G.; Battaner, E.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J. -P.; Bersanelli, M.; Bielewicz, P.; Bobin, J.; Bock, J. J.; Bonaldi, A.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bridges, M.; Bucher, M.; Burigana, C.; Butler, R. C.; et al. (2013). "Planck 2013 results XVI: Cosmological Parameters". Astronomy. 571: A16. arXiv:1303.5076. Bibcode:2014A&A...571A..16P. doi:10.1051/0004-6361/201321591. S2CID118349591.
VandenBerg, Don A.; Brogaard, K.; Leaman, R.; Casagrande, L. (1 October 2013). "The Ages of 55 Globular Clusters as Determined Using an Improved ΔVHB TO Method Along with Color-Magnitude Diagram Constraints, and Their Implications for Broader Issues". The Astrophysical Journal. 775 (2): 134. arXiv:1308.2257. Bibcode:2013ApJ...775..134V. doi:10.1088/0004-637X/775/2/134. S2CID117065283.
Humason, M. L.; Mayall, N. U.; Sandage, A. R. (April 1956). "Redshifts and magnitudes of extragalactic nebulae". The Astronomical Journal. 61: 97. Bibcode:1956AJ.....61...97H. doi:10.1086/107297.
Aaronson, M.; Bothun, G.; Mould, J.; Huchra, J.; Schommer, R. A.; Cornell, M. E. (1986). "A distance scale from the infrared magnitude/H I velocity-width relations. V - Distance moduli to 10 galaxy clusters, and positive detection of bulk supercluster motion toward the microwave anisotropy". The Astrophysical Journal. 302: 536. Bibcode:1986ApJ...302..536A. doi:10.1086/164014.
Madore, Barry F.; Freedman, Wendy L.; Silbermann, N.; Harding, Paul; Huchra, John; Mould, Jeremy R.; Graham, John A.; Ferrarese, Laura; Gibson, Brad K.; Han, Mingsheng; Hoessel, John G.; Hughes, Shaun M.; Illingworth, Garth D.; Phelps, Randy; Sakai, Shoko; Stetson, Peter (10 April 1999). "The Key Project on the Extragalactic Distance Scale. XV. A Cepheid Distance to the Fornax Cluster and Its Implications". The Astrophysical Journal. 515 (1): 29–41. arXiv:astro-ph/9812157. Bibcode:1999ApJ...515...29M. doi:10.1086/307004. S2CID119389510.
Planck Collaboration, Planck; Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Bartlett, J. G.; Battaner, E.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J. -P.; Bersanelli, M.; Bielewicz, P.; Bobin, J.; Bock, J. J.; Bonaldi, A.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bridges, M.; Bucher, M.; Burigana, C.; Butler, R. C.; et al. (2013). "Planck 2013 results XVI: Cosmological Parameters". Astronomy. 571: A16. arXiv:1303.5076. Bibcode:2014A&A...571A..16P. doi:10.1051/0004-6361/201321591. S2CID118349591.
VandenBerg, Don A.; Brogaard, K.; Leaman, R.; Casagrande, L. (1 October 2013). "The Ages of 55 Globular Clusters as Determined Using an Improved ΔVHB TO Method Along with Color-Magnitude Diagram Constraints, and Their Implications for Broader Issues". The Astrophysical Journal. 775 (2): 134. arXiv:1308.2257. Bibcode:2013ApJ...775..134V. doi:10.1088/0004-637X/775/2/134. S2CID117065283.
Humason, M. L.; Mayall, N. U.; Sandage, A. R. (April 1956). "Redshifts and magnitudes of extragalactic nebulae". The Astronomical Journal. 61: 97. Bibcode:1956AJ.....61...97H. doi:10.1086/107297.
Aaronson, M.; Bothun, G.; Mould, J.; Huchra, J.; Schommer, R. A.; Cornell, M. E. (1986). "A distance scale from the infrared magnitude/H I velocity-width relations. V - Distance moduli to 10 galaxy clusters, and positive detection of bulk supercluster motion toward the microwave anisotropy". The Astrophysical Journal. 302: 536. Bibcode:1986ApJ...302..536A. doi:10.1086/164014.
Madore, Barry F.; Freedman, Wendy L.; Silbermann, N.; Harding, Paul; Huchra, John; Mould, Jeremy R.; Graham, John A.; Ferrarese, Laura; Gibson, Brad K.; Han, Mingsheng; Hoessel, John G.; Hughes, Shaun M.; Illingworth, Garth D.; Phelps, Randy; Sakai, Shoko; Stetson, Peter (10 April 1999). "The Key Project on the Extragalactic Distance Scale. XV. A Cepheid Distance to the Fornax Cluster and Its Implications". The Astrophysical Journal. 515 (1): 29–41. arXiv:astro-ph/9812157. Bibcode:1999ApJ...515...29M. doi:10.1086/307004. S2CID119389510.
Planck Collaboration, Planck; Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Bartlett, J. G.; Battaner, E.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J. -P.; Bersanelli, M.; Bielewicz, P.; Bobin, J.; Bock, J. J.; Bonaldi, A.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bridges, M.; Bucher, M.; Burigana, C.; Butler, R. C.; et al. (2013). "Planck 2013 results XVI: Cosmological Parameters". Astronomy. 571: A16. arXiv:1303.5076. Bibcode:2014A&A...571A..16P. doi:10.1051/0004-6361/201321591. S2CID118349591.
VandenBerg, Don A.; Brogaard, K.; Leaman, R.; Casagrande, L. (1 October 2013). "The Ages of 55 Globular Clusters as Determined Using an Improved ΔVHB TO Method Along with Color-Magnitude Diagram Constraints, and Their Implications for Broader Issues". The Astrophysical Journal. 775 (2): 134. arXiv:1308.2257. Bibcode:2013ApJ...775..134V. doi:10.1088/0004-637X/775/2/134. S2CID117065283.
Madore, Barry F.; Freedman, Wendy L.; Silbermann, N.; Harding, Paul; Huchra, John; Mould, Jeremy R.; Graham, John A.; Ferrarese, Laura; Gibson, Brad K.; Han, Mingsheng; Hoessel, John G.; Hughes, Shaun M.; Illingworth, Garth D.; Phelps, Randy; Sakai, Shoko; Stetson, Peter (10 April 1999). "The Key Project on the Extragalactic Distance Scale. XV. A Cepheid Distance to the Fornax Cluster and Its Implications". The Astrophysical Journal. 515 (1): 29–41. arXiv:astro-ph/9812157. Bibcode:1999ApJ...515...29M. doi:10.1086/307004. S2CID119389510.
Planck Collaboration, Planck; Ade, P. A. R.; Aghanim, N.; Armitage-Caplan, C.; Arnaud, M.; Ashdown, M.; Atrio-Barandela, F.; Aumont, J.; Baccigalupi, C.; Banday, A. J.; Barreiro, R. B.; Bartlett, J. G.; Battaner, E.; Benabed, K.; Benoît, A.; Benoit-Lévy, A.; Bernard, J. -P.; Bersanelli, M.; Bielewicz, P.; Bobin, J.; Bock, J. J.; Bonaldi, A.; Bond, J. R.; Borrill, J.; Bouchet, F. R.; Bridges, M.; Bucher, M.; Burigana, C.; Butler, R. C.; et al. (2013). "Planck 2013 results XVI: Cosmological Parameters". Astronomy. 571: A16. arXiv:1303.5076. Bibcode:2014A&A...571A..16P. doi:10.1051/0004-6361/201321591. S2CID118349591.
VandenBerg, Don A.; Brogaard, K.; Leaman, R.; Casagrande, L. (1 October 2013). "The Ages of 55 Globular Clusters as Determined Using an Improved ΔVHB TO Method Along with Color-Magnitude Diagram Constraints, and Their Implications for Broader Issues". The Astrophysical Journal. 775 (2): 134. arXiv:1308.2257. Bibcode:2013ApJ...775..134V. doi:10.1088/0004-637X/775/2/134. S2CID117065283.